Cooking stove

ABSTRACT

A cooking stove with an oven is provided wherein an upper working plane of the stove, to which the control taps and/or switches are affixed, is separated, at least in the front part, from an oven below, so as to leave cooking space therebetween open at least on three sides and communicating with the outside and wherein a free air circulation can taken place. The provision of the cooling space provides a very effective and economical method of heat dissipation from the oven top and insulating the oven top from the cooking range or the working top where the ovens are of self-cleaning type in which very high operating temperatures and associated high heat occur in the self-cleaning cycle.

United States Patent Mazza 1 May 2, 1972 s41 COOKING STOVE FOREIGN PATENTS 0R APPLICATIONS [72] Inventor: Lamberto Mazza, Pordenone, ltaly 436,668 10/1935 Great Britain.. 1 26/39 Assigneez Becchi SIP'A" For, Italy 571,807 9/1945 Great Britain ..l26/39 [22] Filed: Nov. 25, 1969 Primary Examiner-Charles J. Myhre Au -Holma &Stern 21 App]. No.: 879,819

[57] ABSTRACT [30] Foreign Application Priority Data A cooking stove with an oven is provided wherein an upper Nov. 28, 1969 Italy ..2431s A/68 Plane the which the whim P and/0r switches are afiixed, is separated, at least in the front part, [52] C] M12657 R 126/39 R from an oven below, so as to leave cooking space [51] Int. Cl. ..F 24c 15/00 therebetween open at least on three Sides and communicating 58 Field of Search ..l26/19 21 21 A 37 39 B with side and wherein a free ah circu'atiml take" C i place. The provision of the cooling space provides a very effective and economical method of heat dissipation from the [56] References Cited oven top and insulating the oven top from the cooking range or the working top where the ovens are of self-cleaning type in Nl E STATES PATENTS which very high operating temperatures and associated high heat occur in the self-cleaning cycle. 2,321,167 6/1943 Taft ..l26/39 X 2,526,890 10/ 1950 Mendel ..126/39 C 4 Claims, 4 Drawing Figures Patented May 2, 1972 3,659,580

2 Sheets-Sheet 2 [IlllmllllllllllllllllllllHIIIIIIHIH Hllllll IIIIIIIIIIIIIIIIIII] INVENTOR BY LAW M J ATTORNEY 5 coorrmo STOVE The problem of insulating the upper wall of the oven from the working plane of the stove has been well known for some time in the construction of gas stoves and more recently in that of the more modern electric or mixed gas and electric stoves.

This is done so as not to subject to the action of heat the control members which are generally arranged on a panel on the front of the working plane above, whether these be the taps in the case of gas stoves or switches in the case of electric stoves, or those other still more delicate members which have been added in recent times, such as for example the so-called automatic cooks, timers, indicator lamps and the like.

in recent times this problem of insulating the upper wall of the oven from the working plane of the stove has been naturally accentuated by the appearance of the so-called selfcleaning system, i.e., pyrolysis of the grease.

With this system, temperatures are attained during the oven cleaning operation of the order of 500-550 C, which are very much greater than those normally attained during the cooking of food. The necessity of insulating the stove working plane from the oven below is thus understandable. Attempts have been made to solve this problem in various ways. For example insulation of the oven by means of various layers of an insulating material has already been proposed. This solution however is not economically convenient.

The object of this invention is that of resolving this problem in the most simple, rational and economically convenient manner, both in the case of traditional gas and electric stoves and in the more modern mixed gas and electric stoves with a self-cleaning device. This object is attained by separating at least substantially the front part of the cooking plane where all the control and adjusting members for the entire stove are grouped, from the oven below so as to leave a space between the cooking plane and the oven which communicates freely with the outside. More precisely said working plane is supported in a cantilevered manner from the back part of the stove at a certain distance from the upper wall of the oven undemeath.

It is in fact necessary to provide a certain connection between the oven and the working plane to permit arrangement and passage of the ducts and electrical cables necessary for operation of the stove.

Said connection space has been chosen in the back part of the cooker so as to permit practical construction without weakening the stove structure and to position exactly the discharge passages for the oven.

In this way the heat which tends to transmit itself by conduction from the oven to the upper part of the stove is negligible, while the free communication with the outside allows air movements which would not allow appreciable quantities of heat to pass to the cooking plane. Further there is considerable advantage for the manipulation of the controls in that their temperature remains always below a level which would cause annoyance to the user during use of the stove.

in order to better understand the characteristics of the invention, a description is given hereinafter by way of example with reference to the accompanying drawings in which:

FIG. 1 is a perspective view of the stove according to the invention;

FIG. 2 is a front elevational view of the stove;

FIG. 3 is a plan view;

FIG. 4 is a sectional view on the line IV-IV of FIG. 2.

The cooker 10 according to the invention consists of a housing comprising a frontal door 11 of an oven 15 and a lower door12 of a food heating or grill compartment 16. The oven is heated for example by heating elements 29 which can raise the temperature to about 500-550 C for cleaning by means of the self-cleaning system mentioned above. Below the door 12 is provided a base plate 13 standing back with respect to the surface of doors 1 1-12. A fascia 14 is provided above the door 1 1. Above the fascia 14 the cooker characteristically comprises substantiallyI deep free space 17 formed between the upper wall 18 of t e oven and e surface 19 of the working plane 20 below.

The working plane 20 is Supported cantilevered from the back part of the stove by a vertical pillar 21 formed by the stove housing, at a certain distance from the upper wall 18 of the oven 15 standing below. Referring to FIG. 4 it can be seen that inside the pillar 21 there is a connection between the oven and the working plane to permit the arrangement and passage of the ducts and electric cables indicated generically on the drawing by the reference numeral 22, which are necessary for operation of the burners 23 and the electric hotplates 24 operated by means of the knobs 26-27 disposed on a panel 28 on the front part of the working plane 20. Inside the pillar 21 is further formed the passage for the exit of gases from the oven by way of a grill 25. The cooker is also provided with a closing cover 30.

It is clear that the air at ambient temperature, circulating in the space 17 thus formed, cools the space to a tolerable temperature by removing the heat at elevated temperature both from the stove control members and the user, which by conduction and convection tends to transmit itself from the oven to the working plane during normal operation of the oven and in particular during the self-cleaning operation.

What is claimed is:

l. A cooking range comprising: a cooking top having control knobs and indicators at a front end thereof; a self-cleaning type oven disposed below and supporting the cooking top, the front end of the cooking top being substantially in vertical alignment with the oven front; heating means in the self-cleaning type oven to bring about pyrolysis of greasy material in the oven during a self-cleaning cycle thereof; and an unobstructed insulating and cooling air-space between the cooking top and a top of the oven, which space is open at least on three sides, so as to protect said control knobs and indicators from the heat of the oven particularly during a self-cleaning cycle thereof.

2. The cooking range as in claim 1 in which said air-space is open at the front and sides of the oven, whereby the cooking top is arranged in a cantilever formation from a back region of the cooking range.

3. The cooking range as in claim 2 which includes means in a base portion of said cantilever formation for providing ducts and electric cables to operate burners and hot plates respectively on the cooking range top.

4. The cooking range as in claim 3 which further includes means in the base portion of said cantilever formation for the exit of gases from the oven by way of a grill located in an upper part of the cooking range top.

1 I i ii i 

1. A cooking range comprising: a cooking top having control knobs and indicators at a front end thereof; a self-cleaning type oven disposed below and supporting the cooking top, the front end of the cooking top being substantially in vertical alignment with the oven front; heating means in the self-cleaning type oven to bring about pyrolysis of greasy material in the oven during a self-cleaning cycle thereof; and an unobstructed insulating and cooling air-space between the cooking top and a top of the oven, which space is open at least on three sides, so as to protect said control knobs and indicators from the heat of the oven particularly during a self-cleaning cycle thereof.
 2. The cooking range as in claim 1 in which said air-space is open at the front and sides of the oven, whereby the cooking top is arranged in a cantilever formation from a back region of the cooking range.
 3. The cooking range as in claim 2 which includes means in a base portion of said cantilever formation for providing ducts and electric cables to operate burners and hot plates respectively on the cooking range top.
 4. The cooking range as in claim 3 which further includes means in the base portion of said cantilever formation for the exit of gases from the oven by way of a grill located in an upper part of the cooking range top. 